FL Series Flywheel Coupling
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Guardian Couplings

The FL is a two-piece flywheel coupling used on off-highway construction equipment such as skid steer loaders, aerial lifts, excavators, and many other mobile hydraulic applications. The FL product is our oldest line, and has decades of proven success in the field. Not only is the FL our oldest product line, it is our most economical design! The design consists of a glass reinforced nylon flywheel flange that will fit both SAE and metric flywheels. The mating hub is produced from sintered steel and can be used on both splined and straight shafts. The FL product is considered a torsionally stiff design, and does not require lubrication. This design is interchangeable with other popular coupling brands.